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NM 1

NETWORK MIC PREAMP

Data Sheet - 1

General Description

e NM 1 Network Mic Preamp is a very versatile single chan-

nel CobraNet I/O box that nds use in many applications. e

NM 1 presents matchless features in a compact, reliable, easy

to install and maintain package. It has a single studio-grade

microphone input with +48 volt phantom power, and a single

amplier output for connection to an external loudspeaker. e

microphone signal can be transmitted over CobraNet and the

amplier input can be driven by any CobraNet audio channel.

e NM 1 design is based on the Cirrus Logic CS18101 Cobra-

Net chip and CM-2 reference design including the secondary

CobraNet port for data and power supply redundancy (more on

this later). It also has logic I/O on a DB-15 connector for read-

ing external switches and driving indicator LEDs so it can be

connected to a custom switch panel to implement microphone

enable, busy indication and similar functions.

e feature that adds the most versatility to the NM 1 is

Power Over Ethernet (PoE). It is fully compliant with the IEEE

802.3af standard as a Powered Device (PD). is means it’s pow-

ered through the CAT 5 cable that connects it to an Ethernet

switch. Of course, the Ethernet switch used must comply with

the 802.3af standard as Power Supply Equipment (PSE); these

switches are available from all the major Ethernet equipment

manufacturers.

DATA SHEET

ink about this: the NM 1 does not need a power outlet

close by. No AC line voltage wiring. No additional electrical box

in the wall. No wall wart, batteries, solar panel, pedals or water

wheel. e only wiring needed is the data cable back to the Eth-

ernet switch and the local analog audio, making planning and

installation much easier and much less expensive.

Rane’s engineers have designed the NM 1 to have a redun-

dant PoE supply along with the redundant data connections. It

can be powered from either Ethernet port independent of which

one carries the CobraNet data, so an independently redundant

power system comes along with the redundant data system with

no redundant eort. Switching between ports for PoE is almost

seamless and audio interruption is minimal. If the primary port

fails the secondary port takes over very quickly, typically 10 ms,

without loss of programmed settings.

All parameters are controllable via standard SNMP messages

including microphone gain and muting, amplier output level

and muting, and CobraNet Audio channel and Bundle assign-

ments. Four exterior switches assign the NM 1 MIB’s SysName

variable to uniquely identify each unit on the network.

All NM 1 audio and data connectors are metal with lock-

ing, annular-ring shields for maximum durability, security and

immunity from electromagnetic interference, be it radio, static

or legislative hot airwaves. And all this ts in a very rugged (but

good looking) extruded aluminum box.

Features

• Power Over Ethernet (PoE) with built-in redundancy.

• Audio over CobraNet.

• Dual CobraNet interfaces for hardware redundancy.

• Microphone Preamp with 48V phantom power.

• SNMP Software-controlled preamp gain.

• Audio power amplier for monitor loudspeaker.

• Switch/LED interface.

• Switch selectable address.

• All connectors are metal with captive features.

1 2 3 4

Resumo do Conteúdo

Página 1 - DATA SHEET

NM 1NETWORK MIC PREAMPData Sheet - 1General Descriptione NM 1 Network Mic Preamp is a very versatile single chan-nel CobraNet I/O box that nds use i

Página 2 - Made in U.S.A

NM 1NETWORK MIC PREAMPData Sheet - 2Parameter Specication Limit Units Conditions / CommentsMicrophone Input:...Connector XLR Neutrik NC3FBH1 or sim

Página 3

NM 1NETWORK MIC PREAMPData Sheet - 3Q123123CoughButtonTalkButtonOverrideButtonPrivacyButton*Ground pins on the DB-15connector are 6, 7, 8, 9, &10.

Página 4 - NM 1 Software Overview

NM 1NETWORK MIC PREAMPData Sheet - 4All features & specications subject to change without notice. DOC 108421 ©Rane Corporation 10802 47th Ave. W

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Rane NM 48 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Amplificadores áudio Rane NM 48. NM 1 Network Mic Preamp Data Sheet Manual do Utilizador

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